Feature: 1. Fitment: Brake dust shield backing plates kit is replacement for Excursion 2000‑2005; Replacement for F‑450 Super Duty 2008‑2010; Replacement for F‑550 Super Duty 2008‑2010. 2. OE Numbers: Part numbers for reference are 4C3Z2210AA (Left), 5C3Z2B636BA (Left), 4C3Z2209AA (Right), 5C3Z2B636AA (Right), which can ensure perfect match. 3. Strong Protection: These two brake dust shields effectively prevent road dust, debris, and small stones from entering the brake system, improving brake performance and longevity. 4. Enhanced Safety: By preventing dust and debris from entering the brake system, dust shield backing plate kit helps maintain optimal brake performance, ensuring safer and more reliable braking. 5. Rugged Construction: The dust shield kit is made from durable and wear resistant materials, such as metal, ensuring long lasting use even in harsh conditions. Specification: Item Type: Rear Brake Dust Shield Kit Material: Metal OE: 4C3Z2210AA (Left), 5C3Z2B636BA (Left), 4C3Z2209AA (Right), 5C3Z2B636AA (Right) Fitment: Replacement for Excursion 2000-2005 Replacement for F-450 Super Duty 2008-2010 Replacement for F-550 Super Duty 2008-2010. Package List: 1 x Rear Brake Dust Shield Kit (14PCS) Note: 1. Please double check the OEM number and Fitment model match before purchase.2. Installation by a professional mechanic is highly recommended.